The EHP-18PCL from ETS-Lindgren is a Microwave Absorber with Frequency 500 MHz to 40 GHz, Thickness 18.27 Inch/464 mm, Thickness 18.27 Inch, Thickness (mm) 464 mm, Weight 4.6 kg (10.14 lb). Tags: Pyramid. More details for EHP-18PCL can be seen below.